Stabilisation of the [SiH6]2− Anion within a Supramolecular Assembly

Ryan Huo; Alicia  J. Armstrong; Gareth R. Nelmes; Douglas J. Lawes; Alison J. Edwards; Claire L. McMullin; Jamie Hicks

doi:10.1002/chem.202400662

Stabilisation of the [SiH₆]²⁻ Anion within a Supramolecular Assembly

Ryan Huo, Alicia J. Armstrong, Gareth R. Nelmes, Douglas J. Lawes, Alison J. Edwards, Claire L. McMullin, Jamie Hicks

Research School of Chemistry

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The hypercoordinate [SiH6](2-) anion is not stable in solution. Here, we report the room temperature, solution stable molecular [SiH6](2-) complex, [{KCa(NON)(OEt2)}(2)][SiH6] (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethyl-xanthene)), where the [SiH6](2-) anion is stabilised within a supramolecular assembly that mimics the solid-state environment of the anion in the lattice of K2SiH6. Solution-state reactivity of the complex towards carbon monoxide, benzaldehyde, azobenzene and acetonitrile is reported, yielding a range of reduction and C-C coupled products.

Original language	English
Article number	e202400662
Number of pages	6
Journal	Chemistry - A European Journal
Volume	30
Issue number	25
Early online date	Mar 2024
DOIs	https://doi.org/10.1002/chem.202400662
Publication status	Published - 2 May 2024

Access to Document

10.1002/chem.202400662

Cite this

@article{358e6d1a2a17432fa05024b83b257d0c,

title = "Stabilisation of the [SiH6]2− Anion within a Supramolecular Assembly",

abstract = "The hypercoordinate [SiH6](2-) anion is not stable in solution. Here, we report the room temperature, solution stable molecular [SiH6](2-) complex, [{KCa(NON)(OEt2)}(2)][SiH6] (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethyl-xanthene)), where the [SiH6](2-) anion is stabilised within a supramolecular assembly that mimics the solid-state environment of the anion in the lattice of K2SiH6. Solution-state reactivity of the complex towards carbon monoxide, benzaldehyde, azobenzene and acetonitrile is reported, yielding a range of reduction and C-C coupled products.",

keywords = "Hydrides, Hypervalent compounds, Main group elements, Neutron diffraction, Supramolecular chemistry",

author = "Ryan Huo and {J. Armstrong}, Alicia and Nelmes, {Gareth R.} and {J. Lawes}, Douglas and Edwards, {Alison J.} and McMullin, {Claire L.} and Jamie Hicks",

note = "Publisher Copyright: {\textcopyright} 2024 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.",

year = "2024",

month = may,

day = "2",

doi = "10.1002/chem.202400662",

language = "English",

volume = "30",

journal = "Chemistry - A European Journal",

issn = "0947-6539",

publisher = "Wiley-VCH Verlag GmbH",

number = "25",

}

TY - JOUR

T1 - Stabilisation of the [SiH6]2− Anion within a Supramolecular Assembly

AU - Huo, Ryan

AU - J. Armstrong, Alicia

AU - Nelmes, Gareth R.

AU - J. Lawes, Douglas

AU - Edwards, Alison J.

AU - McMullin, Claire L.

AU - Hicks, Jamie

PY - 2024/5/2

Y1 - 2024/5/2

N2 - The hypercoordinate [SiH6](2-) anion is not stable in solution. Here, we report the room temperature, solution stable molecular [SiH6](2-) complex, [{KCa(NON)(OEt2)}(2)][SiH6] (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethyl-xanthene)), where the [SiH6](2-) anion is stabilised within a supramolecular assembly that mimics the solid-state environment of the anion in the lattice of K2SiH6. Solution-state reactivity of the complex towards carbon monoxide, benzaldehyde, azobenzene and acetonitrile is reported, yielding a range of reduction and C-C coupled products.

AB - The hypercoordinate [SiH6](2-) anion is not stable in solution. Here, we report the room temperature, solution stable molecular [SiH6](2-) complex, [{KCa(NON)(OEt2)}(2)][SiH6] (NON=4,5-bis(2,6-diisopropylanilido)-2,7-di-tert-butyl-9,9-dimethyl-xanthene)), where the [SiH6](2-) anion is stabilised within a supramolecular assembly that mimics the solid-state environment of the anion in the lattice of K2SiH6. Solution-state reactivity of the complex towards carbon monoxide, benzaldehyde, azobenzene and acetonitrile is reported, yielding a range of reduction and C-C coupled products.

KW - Hydrides

KW - Hypervalent compounds

KW - Main group elements

KW - Neutron diffraction

KW - Supramolecular chemistry

UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=anu_research_portal_plus2&SrcAuth=WosAPI&KeyUT=WOS:001181306400001&DestLinkType=FullRecord&DestApp=WOS_CPL

U2 - 10.1002/chem.202400662

DO - 10.1002/chem.202400662

M3 - Article

C2 - 38376067

SN - 0947-6539

VL - 30

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 25

M1 - e202400662

ER -

Stabilisation of the [SiH₆]²⁻ Anion within a Supramolecular Assembly

Abstract

Access to Document

Other files and links

Fingerprint

Cite this